Pin stem finding



April 1942- E. MoREHousi; 2,278,523

PIN STEM FINDING Filed May 15, 1940 IQ INVENTOR 1 0 Mre zazzseATTORNEYS.

Patented Apr. 7, 1942' PIN STEM FINDlNG Eugene Morehouse, Providence, R.I., assignor to B. A. Ballou & 00., Inc, a corporation of Rhode Island 7Application May 13, 1940, Serial No. 334,683

3 Claims. (01. 24-157) This invention relates to a pin stem findingsuch, for instance, as a safety catch for the pointed end of the pinstem or a joint for the hinge end. of the pin stem; and has for one ofits objects to provide a simple and effective base by which a blade-likepart may stand upright upon the surface upon which it is to besupported.

Another object of the invention is to provide such a'base on a blade ofsheet stock by bending or deflecting the sheet stock as distinguishedfrom striking or flowing the metal.

Another object of this invention is to so formulate the sheet stock atthe edge of the base that there will be a sufficient amount of attachingedge surface so that the base may be either hard soldered or softsoldered to the article to which it is to be attached.

With these and other objects in view, the invention consists of certainnovel features of construction, as will be more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a side elevation of a safety catch showing the catch in openposition;

Fig. 2 is a view similar to Fig. 1 showing the catch in closed position;

Fig. 3 is a section on line 3-3 of Fig. 1;

Fig. 4 is an elevation of the rotor member of the catch alone;

Fig. 5 is a top plan view of the rotor member before being bent toclosed position;

Fig. 6 is a side elevation of the stator member alone;

Fig. '7 is a section on line I'! of Fig. 6;

Fig. 8 is a perspective view of the stator member with its basepartially formed in finished position;

Fig. 9 is a view similar to Fig. 7 but illustrating a modified form ofbase; and

Fig. 10 is a view similar to Fig. 7 but showing a different modifiedform of the base.

Safety catches have frequently been made by striking parts causingcertain portions to be thickened for various purposes. The striking ofthe parts to cause a flow of metal of this character usually requires ahammer operation and considerable manual handling. Sheet metalstructures may be formed mechanically but in such structures thethickness of the metal must usually remain uniform or substantiallyuniform throughout the various operations; and I have arranged for theutilization of a sheet stock blade for a pin stem finding and soformulated the edge of the finding that the same may stand upright andbe as functionally effective as if the base were of the much; heavier,broader type here- .tofore' struck up with a hammer blow in dies. I havefurther provided this arrangement onthe edge of a single thickness bladewhich is to be attached to a support such, for instance, as by means ofsolder, butI have arranged the deflection of the stock so that. theoverhanging of the rotor member which may be assembled on a blade may besupported so that the entire assembly may stand upright, which is ofconsiderable advantage in the soldering operation; and the following isa more detailed description of the present embodiment of this invention,illustrating the preferred means by which these advan- I tageous resultsmay be accomplished:

With reference to the drawing, the stator member, shown in perspectivein Fig. 8, is designated generally l0 and is illustrated as cutout fromsheet stock of a uniform thickness throughout.

The stock is bent or deflected as at H centrally of the stator outwardlyon one face I2 toprovide a bulge, as illustrated in Figs. 3 to 10, whilethe ends I3 of this stator are bent as at H (see Fig. 7) to extend inthe other direction beyond the other face I5 of the stator. Thisincreases the supporting area of the lower edge it so that the bladeoriginally cut from sheet stock and in substantially a single plane maybe well supported in an upright position on a flat surface.

The base, shown in Fig. 9, instead of having the ends bent as at Mbeyond the surface I5, is arced as at 11, while in Fig. 10 the portioncomparable to the bulge H, now designated l8, extends further beyond thesurface i2 than heretofore, andthe ends [3 are bent as at l9 into almosta complete'circle. These three sections, Figs. '7, 9, and 10, indicatevarying bases which may be formed from the structure shown in Fig. 8 orslight modifications thereof.

The blade or stator which I have illustrated may of course serve eitheras a pin stem joint or as a safety catch. In the particular illustrationhere provided a safety catch is illustrated in which the blade 20 isprovided with an opening 2| and a slot 22, there being an abutment 23extending therefrom. The rotor member is designated generally 25 andconsists of a pair of ears 26 joined together as at 21 providing ahandle 28 with the trunnions 29 of the ears 26 extending into theopening 20' and having a bearing with the edge thereof.

The rotor is provided'with an opening 30 andslotted from one edge tothis opening 30 as at 3|, the arrangement being such that the handles 38configuration, an increased area is provided for use of either hard orsoft solder for the attachment of the finding to the article to which itis to be positioned.

The foregoing description is directed solely towards the constructionillustrated, but I desire it to be understood that I reserve theprivilege of resorting to all the mechanical changes to which the deviceis susceptible.

I claim:

1. In a pin stem finding of a single sheet of material substantially ofuniform thickness comprising an upstanding blade having at least oneextension at the lower edge on one side and having an outwardlyextending bulge on the other side of said blade beyond the normal planeof the opposite surfaces of said blade to provide a supporting area.

2. In a pin stem finding of a single sheet of material substantially ofuniform thickness comprising an upstanding blade having at least oneextension at the lower edge protruding perpendicularly thereto on oneside and having an outwardly extending bulge on the other side of saidblade beyond the normal plane of the opposite surfaces of said blade toprovide a supporting area.

3. In a pin stem finding of a single sheet of material substantially ofuniform thickness comprising an upstanding blade having a pair ofextensions at the lower edge protruding on one side and having anoutwardly extending bulge on the other side of said blade between saidextensions and beyond the normal plane of the opposite surfaces of saidblade to provide a supporting area.

EUGENE MOREHOUSE

